Add gitignore icon (#6835)

Signed-off-by: Engin Diri <engin.diri@mail.schwarz>

_data/simple-icons.json

@@ -3660,6 +3660,11 @@
             "hex": "EA4AAA",
             "source": "https://github.com/sponsors"
         },
+        {
+            "title": "gitignore.io",
+            "hex": "204ECF",
+            "source": "https://docs.gitignore.io/design/logo"
+        },
         {
             "title": "GitKraken",
             "hex": "179287",

icons/gitignoredotio.svg

@@ -0,0 +1 @@
+<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>gitignore.io</title><path d="M15.08 7.143c-.958.57-1.977 1.065-3.743 1.02-2.082 0-3.55 1.11-3.55 2.91 0 1.035.405 1.74 1.409 2.28-.57.36-.884.93-.884 1.516 0 .84.719 1.575 2.456 1.575h1.257c.794 0 1.153.33 1.153.795 0 .525-.344.915-1.841.915-1.513 0-1.812-.315-1.812-1.005H7.428c0 1.575.794 2.565 3.849 2.565 2.815 0 4.252-1.005 4.252-2.64 0-1.335-1.183-2.31-3.024-2.31h-1.318c-.764 0-.869-.24-.869-.48 0-.18.09-.36.255-.45.284.06.584.09.928.09 2.052 0 3.37-1.125 3.37-2.67 0-1.036-.54-1.62-1.543-2.056 1.003 0 1.737-.09 2.291-.315zm-3.683 2.565c.793 0 1.212.42 1.212 1.305 0 .915-.434 1.395-1.212 1.395-.734 0-1.213-.495-1.213-1.365 0-.825.464-1.335 1.213-1.335zm9.135-5.423c-.826 0-1.412.588-1.412 1.341 0 .77.586 1.342 1.412 1.342s1.396-.573 1.396-1.341c0-.754-.57-1.341-1.396-1.341zm1.426 4.19h-4.55v1.627h2.178v4.747h-2.253v1.627H24V14.85h-2.042zM3.933 13.933l1.02 1.02-2.477 2.476-.62-.62v-.8l2.077-2.076Zm-2.695-.219v2.477L0 14.952l1.238-1.238Zm2.257-.219-1.638 1.639v-2.039l.619-.619 1.019 1.02z"/></svg>